Pith Number

pith:GVXJEWDG

pith:2007:GVXJEWDG2EXMZXWQQ3SFHNTYDR

not attested not anchored not stored refs pending

Topological invariants of piecewise hereditary algebras

Patrick Le Meur (CMLA)

arxiv:math/0702457 v4 · 2007-02-15 · math.RT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GVXJEWDG2EXMZXWQQ3SFHNTYDR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:31:21.514833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

356e925866d12eccded086e453b6781c53ed67b3dee79022e25bc87e747198be

Aliases

arxiv: math/0702457 · arxiv_version: math/0702457v4 · doi: 10.48550/arxiv.math/0702457 · pith_short_12: GVXJEWDG2EXM · pith_short_16: GVXJEWDG2EXMZXWQ · pith_short_8: GVXJEWDG

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/GVXJEWDG2EXMZXWQQ3SFHNTYDR \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 356e925866d12eccded086e453b6781c53ed67b3dee79022e25bc87e747198be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "380f444105f0ef104d99026a796ee282d65357ea762156ba0d93faed14ad5618",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2007-02-15T15:56:30Z",
    "title_canon_sha256": "f568b106fe5a84c6a8c647d4d1e2dc6822c21f98ea1aeb921aac052618fd094b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0702457",
    "kind": "arxiv",
    "version": 4
  }
}